These submarines, according to their manufacturer ... sub after crashing into an underwater mountain -- the bow and sonar dome were lost while the lower half of the rudder sustained damage ...

The U.S. Government Accountability Office ( GAO) has released a report that is sharply critical of a Navy cruiser ...

The US Navy is outfitting a pair of its submarines with new technologies that will improve its sonar and cut back on the noise of the boat's nuclear-powered steam generator. The new techs are ...

A Russian submarine collided with a Royal Navy warship's sonar on patrol in the North Atlantic, the Ministry of Defence has confirmed. HMS Northumberland had been tracking the submarine when it ...

Fitted to the array is sophisticated sonar equipment, which, in this incident, was in a collision with the Russian submarine. HMS Northumberland was tracking the underwater vessel at the time of ...